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Dear users, Hi all! I’m using TRNSYS to model a typical HVAC system,i.e.,chiller( type666) and fan coil(type 508a) combined a building model(type 56). I set a room thermostat(type645) for room temperature control, but I found that the chiller has oscillations which result in chilled water temperature fluctuated strongly several times even in an hour。My question is as following: 1. Is there any idea to control Type666 to output its cooling capacity as 0.25,0.5,0.75, 1,like stages control? 2. Should I set more chiller(equally sized) in the model to realize the number of chillers control instead of one chiller? I did not found the relevant information in the forum. Can someone please help me with this issue? With best wishes Yours sincerely Wu weiwei |